Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Matthias Mittelstein0
Christian Lutter0
Christoph Luettge0
Erwin Burkhardt0
Heiko Konrad0
Juergen Specht0
Volker Driesen0
Steffen Meissner0
...
Date of Patent
May 21, 2019
Patent Application Number
14929085
Date Filed
October 30, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
A zero downtime upgrade procedure is initiated that upgrades a first version of software executing on a source system comprising at least one source server to a second version of software executing on a target system comprising at least one target server. The source system initially starts operating in a read-write mode. Thereafter, concurrent with the operation of the source system, operation of the target system is initiated in a read-only mode. Operations of the source system are then ceased by ramping down activities of the source system. Upon cessation of operation of the source system, operation of the target system is initiated in a read-write mode.
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